As of September 30th, Activision Blizzard has confirmed that Diablo 3 has reached 10 million in sales. This makes the game the top selling PC game in both North America and Europe in copies sold and dollars made.

Blizzard also moved 2.7 million copies of Mists of Pandaria, which was the latest expansion to World of Warcraft. The 2.7 million copies were sold during the first week of release, and the company didn’t indicate how sales were going compared to the company’s projections.

The bad news Blizzard announced was that Starcraft 2’s Heart of the Swarm expansion will not get a release date this year. Instead, the company will continue to work on the expansion and it is now working toward a 2013 release in the first half of the year. Heart of the Swarm is currently in beta, but no indication was given if the decision was the result of data gathered during beta testing or not.

Seagate has announced its latest storage milestone. The company achieved storage density of 1 terabit per square inch.

This achievement promises to double the storage of current hard drives when it’s introduced later in the decade. The company claims it will allow for 3.5-inch hard drives of up to 60 terabytes, all in the next 10 years.

For its milestone, Seagate used the next-gen recording technology heat-assisted magnetic recording (HAMR). It is expected to succeed the current Perpendicular Magnetic Recording (PMR) tech, which was introduced in 2006 and expected to hit its 1TB per square cap in the next few years.

Current 3.5-inch drives are capable of about 620 gigabits per square inch whereas 2.5-inch drives manage 500 gigabits per square inch. Being just over 1 terabit per square inch, the first generation of HAMR drives should already double the capacities.

While we’re not the ones to ruin anyone’s milestone, we’re still more interested in immediate benefits for users, such as price drops of existing HDDs, as primitive as they may seem now.